Subherbaceous climber, c. 4 m; glabrous. Leaves grey-green, not punctate beneath, deeply 3-5-palmately lobed or-partite, orbicular to 5-angular in outline, base subcordate, 5-9 x 6-10 cm, 5-subplinerved; lobes or blade-parts ovate to (ob)lanceolate, entire or 2-4(-6)-lobed, apex rounded to subacute, 2-6 cm; margin entire; petiole 1.5-6 cm. Glands at blade-base 2, separate or ± contiguous, on the 1-2 mm wide peltate blade-base; blade-glands 2-6, submarginal or ± scattered. Stipules sub-triangular, c. 0.5(-1) mm, withering. Inflorescences peduncled for 1-4.5 cm, (1-)2-6-flowered in S; tendril 0 or 1, 2-5 cm, sterile tendrils 8-12 cm. Male flowers campanulate, including the 4-4.5 mm long stipe 20-22 mm; hypanthium saucer-shaped, ±5-saccate, 2-3 x 10(-13) mm; calyx-tube (1.5-)2-3 mm; calyx-lobes elongate-triangular, (sub)acute, 10-12 mm, subentire; petals obovate-oblong or ± spathulate-unguiculate, apex rounded, 7.5-9 mm, 3-5-nerved, denticulate, inserted at the same level as the corona; filaments 4-5 mm, connate for 1.5-2 mm, inserted at the base of the hypanthium; anthers c. 9 mm, (sub)obtuse; septa 1.5-2 mm high; corona consisting of hairs simple or branched, or of a laciniate membrane, (0.5-)1 mm; disc-glands 1.7-2 mm. Female flowers and fruit not known.
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